: My 2nd queston, is 4mm plywood really thick enough? I have no doubt that for
: the general hull this should be more than adequate, but im curious how it
: will handle my entire body weight on one spot when i step one foot into it
: as i get into it off a jetty (i weigh about 98kg ~ 240lb?)

i've built two S&G kayaks useing 3mm door-skin plywood. the first was a Guillemot, and it is atill going strong after about seven years of quite frequent use. 'glassed on both sides the 3mm plywood is plenty strong enough.

Daren......